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            <h2 class="toc-title">目录</h2>
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        </div><article class="page single"><h1 class="single-title animated flipInX">两天后 - 还是决定将搜索更换为algolia</h1><div class="post-meta">
            <div class="post-meta-line"><span class="post-author"><a href="https://wlizhi.cc" title="Author" target="_blank" rel="noopener noreffer author" class="author"><i class="fas fa-user-circle fa-fw"></i>Wlizhi</a></span>&nbsp;<span class="post-category">收录于 <a href="/categories/%E6%8A%98%E8%85%BE/"><i class="far fa-folder fa-fw"></i>折腾</a></span></div>
            <div class="post-meta-line"><i class="far fa-calendar-alt fa-fw"></i>&nbsp;<time datetime="2020-11-21">2020-11-21</time>&nbsp;<i class="fas fa-pencil-alt fa-fw"></i>&nbsp;约 988 字&nbsp;
                <i class="far fa-clock fa-fw"></i>&nbsp;预计阅读 2 分钟&nbsp;<span id="/posts/life/replace-the-search-with-algolia-at-two-days-later/" class="leancloud_visitors" data-flag-title="两天后 - 还是决定将搜索更换为algolia">
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        title="关于站内搜索，试用两天lunr后，还是决定换成algolia，algolia本身性能更高、也更加节省流量。" /></div><div class="details toc" id="toc-static"  kept="">
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  <ul>
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      <ul>
        <li><a href="#原由">原由</a></li>
        <li><a href="#lunr和algolia的区别">lunr和algolia的区别</a></li>
        <li><a href="#使用algolia">使用algolia</a></li>
        <li><a href="#自动更新index">自动更新index</a></li>
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            </div><div class="content" id="content"><h3 id="原由">原由</h3>
<hr>
<p>博客搭建好之后，还算满意。试用过程中，偶然发现页面跳转时每次都会请求几个lunr相关支持的js文件，搜索时，又会下载index.js文件。</p>
<p>对lunr支持的文件，还是比较大的；index.js就是文档索引内容了，这个文件和网站内容数量成正比。目前文章只有十多篇，index.js文件就有70kb。</p>
<p>随着文章的发布，index.js会不断增大，且每次点击搜索框进行搜索，都会下载此文件。内容不多的情况下，速度相较于algolia更快。<del>（网络原因，即使选择官方最近的数据中心，还是略卡）</del></p>
<p>一番思索后，决定将lunr换成algolia（虽然因网络原因，目前lunr更快），原因：并非每次加载页面都需要搜索支持，而使用lunr总是会下载搜索相关支持文件，algolia就没有这个问题。</p>
<h3 id="lunr和algolia的区别">lunr和algolia的区别</h3>
<hr>
<p>lunr每次搜索前、都会请求对lunr支持的js文件、及将要分析的索引文档（index.json）。也就是说，搜索功能本身及将要搜索的全部网站数据索引，都是一次性发送到客户端，在客户端浏览器上运行的。这种方式太过简单粗暴。</p>
<p>algolia则是将索引分析任务交给第三方服务器（algolia官方的），需要分析的索引文档，提前上传到algolia服务器，搜索时，客户端仅发送搜索的关键字、身份校验的一些信息。algolia分析本地索引文件，处理完成后将结果返回给客户端。</p>
<p>相对lunr，algolia少了向客户端发送搜索引擎功能文件（因为搜索在服务器做了，搜索功能本身可以做的更强大）、及索引文件。仅仅是搜索关键字、和处理结果的传输，就省了很大一笔网络开销，这也是它的高效之处。</p>
<p>algolia比lunr多了一次网络请求。一般公司里项目做搜索，搜索引擎服务器和业务服务器是通过内网链接，网络延迟很低很低。使用algolia的唯一痛点就在这了，即使选择algolia在国内的数据中心（香港），也还是有点延迟的。</p>
<h3 id="使用algolia">使用algolia</h3>
<ol>
<li>algolia使用还是很简单的，<a href="https://www.algolia.com/" target="_blank" rel="noopener noreffer">Algolia官网</a> 注册账号 -&gt; 创建应用 -&gt; 创建indices -&gt; 上传索引文件。</li>
<li>hugo项目中，配置一些必要信息（前提主题支持algolia搜索）。分别是Algolia中创建的index名称、appId、searchKey。</li>
</ol>
<h3 id="自动更新index">自动更新index</h3>
<p>每次发布新内容，如果手动上传索引文件到algolia，是相当麻烦的。 <a href="https://github.com/chrisdmacrae/atomic-algolia" target="_blank" rel="noopener noreffer">Algolia Atomic</a> 是一个不错的选择。</p></div>

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